Monkeys of South and Central America have prehensile tails, meaning that their tails can be used to grasp objects. The tails of African and Asian monkeys are not prehensile. Which discipline is most likely to provide an evolutionary explanation for how this difference in tails came about?

TLS Online TPP Program

#Question id: 15336

#Unit 4. Cell Communication and Cell Signaling

Which of the following cell surface markers responsible for the regulation of B-cell ?

TLS Online TPP Program

#Question id: 15337

#Unit 4. Cell Communication and Cell Signaling

HSCs express which type of cell-surface molecule, which is the receptor for stem cell factor (SCF). It is a cytokine that exists in both membrane-bound and soluble forms and the SCF-surface molecules interaction is critical for the development, in adult animals, of multipotential progenitor cells (MPPs).  Which type of surface molecules HSCs express?

TLS Online TPP Program

#Question id: 15338

#Unit 4. Cell Communication and Cell Signaling

Which cell generated on the receipt of SCF/c-Kit signaling lose the capacity for extensive self-renewal, but retain the potential to differentiate into several different hematopoietic lineages and also transiently express the molecule CD34?

TLS Online TPP Program

#Question id: 15339

#Unit 4. Cell Communication and Cell Signaling

HSCs begin their life in close contact with osteoblasts located close to the lining of the endosteal cavity. Once differentiated to the pre-pro-B-cell stage, the developing B cells require Which type of signals from the chemokine, which is secreted by a specialized set of stromal cells?

TLS Online TPP Program

#Question id: 15340

#Unit 4. Cell Communication and Cell Signaling

Serrogate light chain formation takes place in 

TLS Online TPP Program

#Question id: 15341

#Unit 4. Cell Communication and Cell Signaling

Formation of pre B-cell  describing__

A. Surrogate light chain formation 

B. On these surface present IgM

C. Heavy chain had been formed

D. DJ H chain recombination